DNA polymerases need a primer oligonucleotide (RNA or DNA) - their substrates are an existing 3'-OH group and a dNTP. The primase however is a typical RNA polymerase, capable of initiating polynucleotide synthesis de novo by positioning a complementary ribonucleoside 5'-triphosphate opposite its complementary DNA base.
Alison Schapker. Alison Schapker is an American television writer and producer. She is well known for her work on the ABC espionage series Alias and for the FOX science-fiction series Fringe.
SEC Biography: Chairman Mary L. Schapiro. Mary L. Schapiro is the 29th Chairman of the U.S. Securities and Exchange Commission. Chairman Schapiro was appointed by President Barack Obama on January 20, 2009, unanimously confirmed by the U.S. Senate, and sworn in on January 27, 2009. She is the first woman to serve as the agencyâs permanent Chairman.